[size=150][br][br][/size][size=150]A hollow composite object, consisting of a cylinder, inverted truncated cone and hemisphere,[br]is completely filled with water, flowing at constant rate, in 12 minutes.[br][br] A plot of the height against time is shown with some points shown. [br]Complete the graph by sketching the appropriate lines/curves[br]to join the points.[/size][size=150][br][br][br][/size]